High maternal BMI and low maternal blood BDNF may determine the limit of detection of amniotic fluid BDNF throughout gestation: Analysis of mother-fetus trios and literature review. - Flöck A; Odainic A; Dolscheid-Pommerich R; Jaskolski MR; Diedrich AK; Puth MT; Schmidt S; Stoffel-Wagner B; Strizek B; Gembruch U; Merz WM (PloS one, 2022)